Remember Duracell’s PowerCheck? The idea was that a strip built into the battery would show if the battery was good or not. Sure, you could always get a meter or a dedicated battery tester &#…
  • ZakEnglish
    450·
    6 days ago

    Now if it was added to rechargeable batteries, it would be pretty useful

    I think the reason we haven’t seen that is that NiMH rechargeables have fairly stable voltage during discharge while alkalines don’t.